Idk, I think it would increase anxiety for my SO, and we have a lot of trust. For example, if I take a coworker home, go out to lunch, etc w/o telling my SO, and they see that deviation in my routine, they could start doubting that trust. But if they just don't see it, they just rely on what we tell each other, and if it's not important, it doesn't need to be communicated and can't create that anxiety.

At least that's my take. My SO is really trusting, but also quite anxious because of nonsense they read on SM and whatnot, so a deviation can create a lot of unnecessary concern.

But yeah, I wouldn't be completely opposed to a self-hosted solution here. I use GrapheneOS, and if the UX isn't too terrible (i.e. easy to toggle off and on), it could be really useful for something like going hiking alone or whatever.